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Principal ML Engineer

Job in Washington, District of Columbia, 20001, USA
Listing for: Photon
Full Time position
Listed on 2026-07-19
Job specializations:
  • Software Development
    AI Engineer (Applied/Software), Machine Learning/ ML Engineer, Data Scientist
Job Description & How to Apply Below
Position: Principal ML Engineer - USA

Job Title

Job Description

Greetings Everyone

For the past 20 years, we have powered many Digital Experiences for the Fortune 500. Since 1999, we have grown from a few people to more than 4000 team members across the globe that are engaged in various Digital Modernization.

About the team:

The Mail Intelligence AI/ML platform is dedicated to developing scalable, intelligent capabilities that uncover user interests, reveal habits, and personalize journeys within Mail and the broader ecosystem. We seek innovative, entrepreneurial engineers who are passionate about delivering top-tier solutions. Your passion and ownership mindset are as vital as the high engineering standards, code quality, and architectural excellence we uphold. We leverage cutting-edge algorithms, including natural language processing, generative AI, large language models, and machine learning, to process billions of mail messages.

This enables us to extract information, build mail content, enhance user knowledge, and connect diverse data sources to highlight and amplify key insights.

Our work presents rewarding technical challenges for high-caliber engineers eager to tackle impactful problems. You will develop tools and workflows to efficiently manage and utilize vast data, work on AI-based infrastructure, support new functionalities, and mine data for analytics insights and product features.

Responsibilities:

  • Contribute to Mail Intelligence Mission:
    Support the development of AI/ML capabilities that enhance user personalization and insights.
  • Innovate and Personalize:
    Assist in building scalable AI/ML solutions that identify user interests and habits, contributing to personalized user experiences.
  • Technical Leadership:
    Guide and mentor a team of passionate engineers, fostering a culture of innovation and excellence. Your leadership will ensure the delivery of high-quality, user-centric solutions.
  • Collaborative Development:
    Work with cross-functional teams to integrate new AI/ML features and improve existing platforms, ensuring smooth user interactions.
  • Data-Driven Insights:
    Apply machine learning techniques and big data processing to derive insights from mail data, enhancing content and user knowledge.
  • Tool and Workflow Development:
    Develop AI/ML tools and workflows to manage and utilize large datasets, supporting AI-based infrastructure and analytics.
  • A/B Testing and Analysis:
    Run regular A/B tests, gather data, and draw conclusions on the impact of your models.
  • Commitment to Excellence:
    Maintain high engineering standards, focusing on code quality and architectural skills, while delivering optimal user experiences.
  • Feedback and Recovery:
    Implement feedback loops and recovery paths to handle AI failures gracefully, ensuring user satisfaction.
  • Balance Tradeoffs:
    Manage cost, quality, and speed tradeoffs in AI/ML solutions to optimize performance.
  • A lot about YOU

    • Educational Background:
      You have a strong foundation in computer science, data science, or a related field, with a focus on machine learning and AI technologies.
    • Technical

      Skills:

      Proficient in programming languages such as Python or Java and machine learning frameworks like Tensor Flow, PyTorch, and Scikit-learn. Skilled with AI tools such as Cursor, Copilot, and Claude.
    • AI

      Skills:

      Advanced AI skills, including experience with AI development tools and frameworks.
    • Problem-Solving Ability:
      You possess strong analytical skills and a knack for solving complex problems using data-driven approaches.
    • Collaboration:

      You are a team player who can work effectively with cross-functional teams, including tech leads and architects, to deliver high-quality solutions.
    • Passion for Innovation:
      You are enthusiastic about leveraging AI/ML to drive innovation and enhance user experiences across the broader ecosystem.
    • Attention to Detail:
      You maintain high standards for code quality and are committed to delivering robust, scalable solutions.
    • Continuous Learning:
      You are eager to stay updated with the latest advancements in AI/ML and apply them to improve products and services.

    Qualifications

    • Educational Requirement:
      Bachelor's degree in Computer Science, Data Science, or a related field; a Master's degree is a plus.
    • Exp…
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